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User: Jarrod Rhoades

Created on: 2023-05-26

Observation Date 2023-05-24

Fertilized LTER Main Site treatment T4 all reps (R5, R3, R2, R4, R1, R6) with Compass Minerals Protassium+ Organic Ag Standard Sulfate of Potash 0-0-50 Plus 17% Sulfur. The target rate in Raven controller was 200 lbs per acre. Based on amount leftover of product about 230 lbs per acre was applied. The first T4 fertilizer application in decades. Reps 5,3,2 and 4 were applied on 5/24/23. Reps 1 and 6 were applied on 5/25/23. Prairie strips were not fertilized. Application was done at 2 mph, Raven SCS600 metercal set to 201, density of protassium+ was about 100 lbs/cubic ft. Weather at 5:30 pm 5/24/23. Temperature: 64.4°F Wind Speed (5 minute at 3m) : 11.66 mph Wind Direction: North East Relative Humidity: 30.1% Weather Conditions at 11:30 a.m 5/25/23: Temperature: 53.7° F; Wind Speed (5 minute at 3m) : 10.61 mph Wind Direction: East Relative Humidity: 42.4%


Observation Type:
Fertilizer Application


Worker: Jarrod Rhoades
Equipment: John Deere 7420b Tractor (14.9 R 46 back tire size)
Equipment: Gandy Orbit-Air (30' boom) • Material: Fertilizer Organic Sulfate of Potash 0-0-50-17S @ 200.0 pound per acre


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